The 25-year-old singer, who is currently on her "Diamonds" world tour, stripped down (as she often does) to show off her sexy moves and her rockin' bod during a stop in Greece. The star posted a series of photos of herself posing poolside on her Instagram account on Wednesday.

One of the images shows RiRi in a tiny black bikini, draped over a railing in a twerk-like pose (showing Miley how it's really done), while other pics show the star with a pink flower in her mouth, lying in front of a beautiful beach.